I have test printed a 20mm cube, and the sides and top are incomplete, but the base is ok;

I have increased the extrusion multiplier from 1 to 1.25, which helped.
I have also made these other changes to see if they would help, but i cant tell any difference;
Extrusion Width → Top Solid Infill 0.45 to 0.8
vert shells 3 → 6
horiz shells 3 → 6
Default extrusion width→ 0.3 to 0.4